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(No Model.)

A. A. MUKAIN & W. SEBURN. PNBUMATIG STRAW STAGKBR.

No. 518,620. Patented Apr. 24, 1894.

I I I l Vilivrrnn STATES PATENT OFFICE.

ARTHUR A. MCKAIN AND `VVILLIAM SEBURN, OF INDIANAPOLIS, INDIANA.

PN EU lVlATlC STRAW-STACKER.

SPECIFICATION forming part of Letters Patent No. 518,620, dated April 24, 1894. Application tiled December 27, 1893. Serial No. 494,830. (No model.)

To a/ZZ whom t may concern:

Be it known that we, ARTHUR A. MCKAIN and WILLIAM Scenari, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements 'in Pneumatic Straw-Stackers, of which the following is a specification.

Our said invention consists in certain improvements upon that class of machines known as pneumatic straw elevators and stackers, of which that shown and described in Letters Patent No. 467,476, to James Buchanan, dated January 19, 1892, is a leading ex ample.

The objectof our said invention is to provide a means whereby the trunk or chute may be elevated to the position which it should occupy in use, and depressed to the position Whichitshouldoccupywhen notinuse,without employing the exible joint which has heretofore been necessary. This object is accomplished by seating the turn-table upon an in cline of such an angle that when the chute or trunk is swung out into the position it oc cupies when in use, extending over the stack, it is elevated to a considerable height; and when swung around over the machine, in the position it occupies when the machine is out of use, or is being transported from place to place, it is in nearly (and` may be in quite) a level position.

Referring to the accompanying drawings which are made a part hereof, and on which similar letters of reference indicate similar parts, Figure l is a view of the rear end of a thrashing machine, having a pneumatic straw elevator and stacker attached thereto, einbodying our saidinvention, the position of the trunk or chute when in use being shown in full lines, and the position when folded, or out of use, being shown in dotted lines. Fig. 2 is a fragmentary View similar to a portion of Fig. 1, but on an enlarged scale, showing the turn-table and supporting frame and braces more clearly. Fig. 3 is a horizontal sectional view, as seen -when looking downwardly fromthe dotted line 3 3 in Fig. 2, and Fig. 4 a detail sectional view ou the dotted line 4 4 in Fig. 3.

In said drawings the portions marked A represent the body of the thrashing machine; B

j the fan; O the turn-table; D the trunkor chute, and E the hood or mouth portion thereof. The general construction of these several parts is in many respects similar to those shown in the above mentioned Letters Patent, except that they are generally somewhat simplified. The thrashing machine A is or may be of any ordinary construction, except that it is provided with an inclined platform A upon the `rear end, to which the turntable O is attached. The fan B is within the usual fan casing B', and arranged in a similar manner to that heretofore used. The turn-table C is secured to the inclined platform A by means of housings A2, containing anti-friction trucks a a2 and 0.3, which bear against the inner, upper, and lower surfaces thereof, as shown most plainly in Figs. 3 and 4. The outer edge of this turn-table is a screw gear with which the worm C on the shaft C2 engages, and whereby said turn-table is revolved. The trunk or chute D is similar to that shown in the above-mentioned Letters Patent, except that it is a continuous rigid structure having `no joint at the lower end5-such a joint having heretofore been employed at `about the point where the yoke frame D is located. Said trunk is secured to the turn-table C by the brace bars C3 C4 O5 C6, which unite it rmly and rigidly to said turntable. A comparatively long stay rod D2 runs from the top of the yoke frame D to a point toward the front end of the chute, and thus sustains said chute strongly in place. The hood or mouth-piece E is secured to the outer end of the trunk D, and is hinged thereto at e, as is usual. It is operated by a rod E and a handle E2, in a manner similar to that in which such parts have previously been operated.

Having thus fully described our said invention, what we claim as new, and desire to secure by Letters Patent, is

`l. The combination, of the thrashing machine provided with the platform A having its highest side at the rear end of the machine, a turn-table secured thereon, and parallel therewith, a straw elevator trunk or chute D secured to said turnltable, and means for revolving said turn-table, whereby said straw elevator trunk is caused to be elevated in its extended position and to be lowered when in its folded up position above the body of the IOO thrashing machine, substantially as shown and described and for the purposes specified.

2. The combination of the thrashing machine having the inclined platform A with chine having an inclined platform,a turntable mounted on said platforxmand parallel therewith, a rigid straw stacker trunk or chute mounted on said turn-table andsecured thereto by means of braces and frame pieces, as C C2 C3 C4, thus securing said elevatortrunk or chute rigidly thereto, ysubstantially as set yfort-h. f c

In witness whereof we have hereunto set our hands and seals, at India11apolis,lndiana, this 16th day ofrcDeeember, A. D. 1893.

` ARTHUR A. MGKAIN.Y L. 3.] WM. `SEBURN. n LL. s] Vitnesses: n c CHESTER BRADFORD, yJAMES A.fWALsH. 

